Home / 156,966.57-217,184.31-136,865.31

Finding the Fourth Proportional to 156,966.57, 217,184.31 and 136,865.31

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Solution

The fourth proportional to 156,966.57, 217,184.31 and 136,865.31 is: 189,371.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,966.57 : 217,184.31 = 136,865.31 : x
  2. Step 2: Convert to fraction form
    156,966.57/217,184.31 = 136,865.31/x
  3. Step 3: Cross multiply
    156,966.57x = 217,184.31 × 136,865.31
  4. Step 4: Simplify right side
    156,966.57x = 29,724,997,915.29
  5. Step 5: Solve for x
    x = 29,724,997,915.29/156,966.57
  6. Step 6: Final answer
    x = 189,371.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.